a) There are many (differences) between my two brothers .They aren't similar at all.
b) Your diet may cause (painful), (serious) problems for you.
c) Drivers must be (careful), especially in rush hours.
d) You have to take (responsibility) for yourself.
e) He can't make any (decision). I decide where to go, what to buy.
f) Who is the (owner) of this shop?
g) (Smoking) is (harmful) for your health.